condition	mean	min	max
4 h after light	14.50305	13.6282	15.3779
8 h after light	14.41585	14.3358	14.4959
12 h after light	18.9051	18.5985	19.2117
4 h after dark	20.47205	19.9557	20.9884
8 h after dark	17.4099	17.3146	17.5052
12 h after dark	17.3465	16.7986	17.8944